/* ============================================================
   销售工作OS · 个人品牌站 设计系统
   by Benny · 中文为主 · AI 科技感
   ============================================================ */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --ink:#0f172a;            /* 墨蓝 */
  --ink-2:#1e293b;
  --muted:#5b6b83;
  --brand:#4f46e5;          /* 靛蓝主色 */
  --brand-dark:#4338ca;
  --cyan:#06b6d4;           /* 青色 accent */
  --amber:#f59e0b;
  --bg:#ffffff;
  --alt:#f6f8fc;            /* 浅区背景 */
  --line:#e5eaf3;
  --dark:#0b1220;           /* 深色区背景 */
  --dark-2:#111a30;
  --grad:linear-gradient(120deg,#4f46e5 0%,#7c3aed 45%,#06b6d4 100%);
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);line-height:1.7;background:var(--bg);font-size:16px}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1160px;margin:0 auto;padding:0 22px}
.center{text-align:center}

/* ---------- 头部 ---------- */
.site-header{background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:66px;gap:18px}
.logo{display:flex;align-items:center;gap:11px;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo-mark{width:38px;height:38px;flex-shrink:0}
.logo-text{font-size:1.18rem;font-weight:800;letter-spacing:.01em;line-height:1.1}
.logo-text small{display:block;font-size:.62rem;font-weight:600;color:var(--muted);letter-spacing:.22em;text-transform:uppercase;margin-top:2px}
nav ul{display:flex;gap:26px;list-style:none;align-items:center}
nav a{color:var(--ink-2);font-weight:500;font-size:.95rem}
nav a:hover{color:var(--brand);text-decoration:none}
nav a.active{color:var(--brand);font-weight:700}
/* 导航下拉 */
.dropdown{position:relative}
.drop-toggle{cursor:pointer;display:inline-flex;align-items:center;gap:4px}
.dropdown-menu{display:none;position:absolute;top:100%;left:-8px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 34px rgba(15,23,42,.14);padding:8px;min-width:200px;list-style:none;z-index:70}
.dropdown:hover .dropdown-menu,.dropdown.open .dropdown-menu{display:block}
.dropdown-menu li{padding:0;border:none}
.dropdown-menu a{display:block;padding:10px 14px;border-radius:8px;font-size:.9rem;color:var(--ink-2);font-weight:500}
.dropdown-menu a:hover{background:var(--alt);color:var(--brand);text-decoration:none}
.dropdown-menu .menu-home{border-bottom:1px solid var(--line);margin-bottom:4px;padding-bottom:8px}
@media(max-width:860px){
  .dropdown{position:static}
  .dropdown-menu{position:static;box-shadow:none;border:none;border-left:3px solid var(--brand);margin:6px 0 6px 8px;padding:2px 0 2px 10px;display:none;min-width:0}
  .dropdown.open .dropdown-menu{display:block}
  .dropdown-menu .menu-home{border:none;margin:0;padding:0}
}
.btn{display:inline-block;padding:11px 24px;border-radius:10px;font-weight:600;font-size:.95rem;border:2px solid transparent;cursor:pointer;transition:all .16s}
.btn:hover{text-decoration:none}
.btn-accent{background:linear-gradient(120deg,#4f46e5,#06b6d4);color:#fff;box-shadow:0 6px 18px rgba(79,70,229,.28)}
.btn-accent:hover{box-shadow:0 8px 24px rgba(79,70,229,.4);transform:translateY(-1px)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--brand);color:#fff}
.btn-outline-light{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
.btn-outline-light:hover{background:#fff;color:var(--ink)}
.btn-lg{padding:14px 32px;font-size:1.05rem;border-radius:12px}
.btn-sm{padding:8px 16px;font-size:.86rem}
.header-cta{padding:9px 20px;font-size:.9rem}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:1.1rem;cursor:pointer;color:var(--ink)}
@media(max-width:860px){
  .nav-toggle{display:block}
  nav{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 22px 22px;box-shadow:0 16px 30px rgba(15,23,42,.1)}
  nav.open{display:block}
  nav ul{flex-direction:column;gap:2px;align-items:stretch}
  nav li{padding:11px 0;border-bottom:1px solid var(--line)}
  nav li:last-child{border-bottom:none}
  .header-cta{display:block;text-align:center;margin-top:6px}
}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(1100px 500px at 85% -10%,rgba(124,58,237,.35),transparent 60%),radial-gradient(900px 420px at -10% 20%,rgba(6,182,212,.28),transparent 55%),linear-gradient(160deg,#0b1220 0%,#101b36 55%,#0e1a33 100%);color:#fff;padding:96px 0 88px;overflow:hidden;position:relative}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}
.hero-wrap{position:relative;z-index:1}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:6px 16px;font-size:.8rem;letter-spacing:.14em;color:#b9c6ff;margin-bottom:22px;font-weight:600}
.hero-kicker .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero h1{font-size:3rem;line-height:1.14;margin-bottom:20px;max-width:820px;font-weight:800;letter-spacing:-.01em}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:1.18rem;max-width:760px;color:#c3cdea;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:7px 16px;font-size:.85rem;color:#dbe3ff}
@media(max-width:820px){.hero h1{font-size:2.2rem}.hero{padding:64px 0}}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--alt)}
.section-dark{background:var(--dark);color:#fff}
.section-title{font-size:1.9rem;font-weight:800;margin-bottom:12px;letter-spacing:-.01em}
.section-sub{font-size:1.05rem;color:var(--muted);max-width:680px;margin:0 auto 40px}
.section-dark .section-sub{color:#a9b6d8}
.section-head{text-align:center;margin-bottom:44px}
.section-head .kicker{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.2em;color:var(--brand);text-transform:uppercase;margin-bottom:10px}
.section-dark .section-head .kicker{color:var(--cyan)}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:960px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 24px;transition:box-shadow .18s,transform .18s,border-color .18s}
.card:hover{box-shadow:0 14px 34px rgba(15,23,42,.1);transform:translateY(-3px);border-color:#d4ddf2}
.card-icon{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(79,70,229,.12),rgba(6,182,212,.12));border:1px solid rgba(79,70,229,.18);margin-bottom:16px}
.card-icon svg{width:24px;height:24px;stroke:var(--brand)}
.card h3{font-size:1.08rem;font-weight:700;margin-bottom:8px}
.card p{font-size:.93rem;color:var(--muted)}
.card .more{margin-top:12px;font-size:.88rem;font-weight:600;color:var(--brand)}

/* ---------- 痛点区 ---------- */
.pain-card{border-left:3px solid #e2e8f0}
.pain-card svg{width:26px;height:26px;stroke:#94a3b8;margin-bottom:14px}

/* ---------- 三步流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
@media(max-width:820px){.steps{grid-template-columns:1fr}}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 26px}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-16px;left:26px;width:34px;height:34px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:1rem;box-shadow:0 6px 14px rgba(79,70,229,.35)}
.step h3{font-size:1.1rem;margin:6px 0 10px}
.step p{font-size:.93rem;color:var(--muted)}

/* ---------- 能力模块墙 ---------- */
.cap-card{display:flex;flex-direction:column}
.cap-card .tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:6px}
.cap-card .tag{font-size:.74rem;color:var(--muted);background:var(--alt);border:1px solid var(--line);border-radius:999px;padding:3px 10px}

/* ---------- 工作流示意 ---------- */
.flow{background:var(--dark);border-radius:20px;padding:40px 32px;color:#fff;position:relative;overflow:hidden}
.flow::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:40px 40px;pointer-events:none}
.flow-inner{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:960px){.flow-inner{grid-template-columns:repeat(2,1fr)}}
.flow-step{border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:20px 18px;background:rgba(255,255,255,.05)}
.flow-step .num{font-size:.72rem;font-weight:700;letter-spacing:.16em;color:var(--cyan)}
.flow-step h4{font-size:1rem;margin:8px 0 6px}
.flow-step p{font-size:.84rem;color:#a9b6d8}
.flow-arrow{color:var(--cyan);font-size:1.3rem;align-self:center;text-align:center}

/* ---------- CTA band ---------- */
.cta-band{background:var(--grad);color:#fff;padding:66px 0;text-align:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:40px 40px;pointer-events:none}
.cta-band .container{position:relative;z-index:1}
.cta-band h2{font-size:2rem;margin-bottom:12px}
.cta-band p{max-width:640px;margin:0 auto 30px;color:rgba(255,255,255,.9);font-size:1.05rem}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-band .btn-white{background:#fff;color:var(--brand-dark)}
.cta-band .btn-white:hover{transform:translateY(-1px);box-shadow:0 10px 26px rgba(0,0,0,.22)}

/* ---------- 页头（内页） ---------- */
.page-head{background:var(--dark);color:#fff;padding:64px 0 56px;position:relative;overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}
.page-head .container{position:relative;z-index:1}
.page-head .crumb{font-size:.82rem;color:#8ea0cf;margin-bottom:12px}
.page-head .crumb a{color:#8ea0cf}
.page-head h1{font-size:2.4rem;font-weight:800;margin-bottom:12px;letter-spacing:-.01em}
.page-head p{max-width:720px;color:#c3cdea;font-size:1.05rem}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.93rem}
th,td{border:1px solid var(--line);padding:12px 16px;text-align:left;vertical-align:top}
th{background:var(--alt);font-weight:700}
tbody tr:nth-child(even){background:#fafbfe}

/* ---------- 定价 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
@media(max-width:960px){.price-grid{grid-template-columns:1fr;max-width:480px;margin:0 auto}}
.price-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px 28px;display:flex;flex-direction:column;position:relative;transition:box-shadow .18s,transform .18s}
.price-card:hover{box-shadow:0 16px 40px rgba(15,23,42,.12);transform:translateY(-3px)}
.price-card.featured{border:2px solid var(--brand);box-shadow:0 14px 40px rgba(79,70,229,.16)}
.price-card .ribbon{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:.74rem;font-weight:700;letter-spacing:.1em;padding:5px 18px;border-radius:999px;white-space:nowrap}
.price-name{font-size:1.2rem;font-weight:800}
.price-desc{font-size:.9rem;color:var(--muted);margin:8px 0 20px}
.price-amount{font-size:2.1rem;font-weight:800;color:var(--ink);margin-bottom:4px}
.price-amount .cur{font-size:1rem;color:var(--muted);font-weight:600}
.price-amount .todo{font-size:.95rem;color:var(--amber);font-weight:700}
.price-note{font-size:.8rem;color:var(--muted);margin-bottom:18px}
.price-feats{list-style:none;margin:0 0 24px;flex:1}
.price-feats li{padding:7px 0 7px 28px;position:relative;font-size:.92rem;color:var(--ink-2)}
.price-feats li::before{content:"✓";position:absolute;left:0;top:7px;color:var(--brand);font-weight:800}
.price-feats li.no{color:#94a3b8}
.price-feats li.no::before{content:"—";color:#cbd5e1}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;background:#fff}
.faq-q{padding:18px 22px;font-weight:700;font-size:1rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-q::after{content:"＋";color:var(--brand);font-size:1.2rem;font-weight:600;transition:transform .18s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{display:none;padding:0 22px 20px;font-size:.93rem;color:var(--muted)}
.faq-item.open .faq-a{display:block}

/* ---------- 关于页 ---------- */
.story-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px;margin-bottom:20px}
.story-card h3{font-size:1.15rem;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.story-card h3 .emoji{font-size:1.3rem}
.story-card p{font-size:.96rem;color:var(--ink-2)}
.story-card p+p{margin-top:10px}
.principle{background:var(--dark);border-radius:16px;padding:28px;color:#fff}
.principle h3{color:#fff;margin-bottom:8px;display:flex;gap:10px;align-items:center}
.principle p{color:#a9b6d8;font-size:.92rem}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:34px;align-items:start}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr}}
.contact-item{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:14px}
.contact-item .cicon{width:42px;height:42px;flex-shrink:0;border-radius:10px;background:linear-gradient(135deg,rgba(79,70,229,.12),rgba(6,182,212,.12));display:flex;align-items:center;justify-content:center}
.contact-item .cicon svg{width:22px;height:22px;stroke:var(--brand)}
.contact-item h4{font-size:1rem;margin-bottom:4px}
.contact-item p,.contact-item a{font-size:.93rem;color:var(--muted)}
.contact-item a{color:var(--brand);font-weight:600}
.form-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px}
.form-card h3{font-size:1.25rem;margin-bottom:18px}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:.86rem;font-weight:600;margin-bottom:6px;color:var(--ink-2)}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:.95rem;font-family:inherit;background:#fafbfe;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.12);background:#fff}
.form-row textarea{min-height:110px;resize:vertical}
.form-tip{font-size:.8rem;color:var(--muted);margin-top:10px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#9fb0cf;padding:52px 0 0;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding-bottom:36px}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-grid h4{color:#fff;margin-bottom:12px;font-size:.98rem}
.footer-grid a{color:#9fb0cf;display:block;margin-bottom:8px}
.footer-grid a:hover{color:#fff;text-decoration:none}
.footer-about p{color:#7f90b4;font-size:.88rem;max-width:340px}
.footer-bottom{border-top:1px solid #1c2942;padding:18px 0;text-align:center;color:#5d6f94;font-size:.82rem}

/* ---------- 徽标/杂项 ---------- */
.badge{display:inline-block;background:var(--alt);border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:4px 14px;font-size:.78rem;font-weight:600;margin:4px 6px 0 0}
.badge.brand{background:rgba(79,70,229,.08);border-color:rgba(79,70,229,.2);color:var(--brand)}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-40{margin-top:40px}
.notice{background:#fffbeb;border:1px solid #fde68a;color:#92400e;border-radius:12px;padding:16px 20px;font-size:.92rem;margin-bottom:28px}
.notice strong{color:#78350f}

/* ---------- 表单提交成功提示 ---------- */
.success-banner{background:#ecfdf5;border:1px solid #a7f3d0;border-radius:16px;padding:26px 30px;margin-bottom:28px;color:#065f46}
.success-banner h3{font-size:1.3rem;margin-bottom:10px;color:#047857}
.success-banner p{font-size:.95rem;margin-bottom:6px}
.success-banner ol{margin:10px 0 8px 20px}
.success-banner li{font-size:.95rem;margin-bottom:4px}
.success-banner .next-step{margin-top:14px;padding-top:14px;border-top:1px solid #a7f3d0;font-size:.95rem}

/* ---------- 产品与服务页 ---------- */
.cat-head{display:flex;align-items:center;gap:14px;margin-bottom:8px}
.cat-head .cat-num{width:40px;height:40px;border-radius:12px;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.05rem}
.cat-head h2{font-size:1.5rem;font-weight:800}
.cat-intro{color:var(--muted);max-width:760px;margin-bottom:26px;font-size:.98rem}
.prod-card{display:flex;flex-direction:column}
.prod-card .prod-cat{font-size:.74rem;font-weight:700;letter-spacing:.12em;color:var(--brand);text-transform:uppercase;margin-bottom:8px}
.prod-card h3{font-size:1.06rem;margin-bottom:6px}
.prod-card .who{font-size:.84rem;color:var(--muted);margin-bottom:12px}
.prod-card ul{list-style:none;margin:0 0 16px;flex:1}
.prod-card ul li{padding:4px 0 4px 22px;position:relative;font-size:.9rem;color:var(--ink-2)}
.prod-card ul li::before{content:"✓";position:absolute;left:0;top:4px;color:var(--brand);font-weight:800}
.prod-price-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.prod-price{font-size:1.35rem;font-weight:800;color:var(--ink)}
.prod-price .cur{font-size:.85rem;color:var(--muted);font-weight:600}
.prod-price .todo{font-size:.95rem;color:var(--amber);font-weight:700}
.buy-strip{background:var(--dark);border-radius:18px;padding:34px 30px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.buy-strip h3{font-size:1.3rem;margin-bottom:6px}
.buy-strip p{color:#a9b6d8;font-size:.92rem;max-width:560px}

/* ---------- 知识库页 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:26px}
.filter-tabs{display:flex;gap:6px;flex-wrap:wrap}
.filter-tab{padding:8px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:.9rem;font-weight:600;color:var(--muted);cursor:pointer;transition:all .15s}
.filter-tab:hover{border-color:var(--brand);color:var(--brand)}
.filter-tab.active{background:var(--brand);border-color:var(--brand);color:#fff}
.platform-chips{display:flex;gap:6px;flex-wrap:wrap}
.pchip{padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:var(--alt);font-size:.82rem;font-weight:600;color:var(--muted);cursor:pointer;transition:all .15s}
.pchip:hover{border-color:var(--brand);color:var(--brand)}
.pchip.active{background:var(--ink);border-color:var(--ink);color:#fff}
.article-card{display:flex;flex-direction:column}
.article-card .art-meta{display:flex;align-items:center;gap:8px;margin-bottom:10px;flex-wrap:wrap}
.art-tag{display:inline-block;font-size:.74rem;font-weight:700;border-radius:999px;padding:3px 12px}
.art-tag.huoke{background:rgba(79,70,229,.1);color:var(--brand)}
.art-tag.huashu{background:rgba(6,182,212,.12);color:#0e7490}
.art-tag.celue{background:rgba(245,158,11,.14);color:#b45309}
.art-tag.xitong{background:rgba(16,185,129,.12);color:#047857}
.art-platform{font-size:.74rem;font-weight:600;color:var(--muted);background:var(--alt);border:1px solid var(--line);border-radius:999px;padding:3px 10px}
.art-date{font-size:.78rem;color:var(--muted)}
.article-card h3{font-size:1.06rem;line-height:1.45;margin-bottom:8px}
.article-card p{font-size:.9rem;color:var(--muted)}
.article-card .more{margin-top:12px;font-size:.88rem;font-weight:600;color:var(--brand)}
.empty-state{text-align:center;padding:64px 26px;background:#fff;border:1.5px dashed var(--line);border-radius:18px}
.empty-state .es-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:14px;background:var(--alt);display:flex;align-items:center;justify-content:center}
.empty-state .es-icon svg{width:28px;height:28px;stroke:var(--muted)}
.empty-state h3{font-size:1.15rem;margin-bottom:8px}
.empty-state p{color:var(--muted);font-size:.92rem;max-width:520px;margin:0 auto 10px}
.empty-state .es-topics{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.empty-state .es-topic{font-size:.82rem;color:var(--ink-2);background:var(--alt);border:1px solid var(--line);border-radius:999px;padding:5px 14px}

/* ---------- 博客页 ---------- */
.blog-section{margin-bottom:56px}
.blog-section:last-child{margin-bottom:0}
.blog-section-head{display:flex;align-items:center;gap:14px;margin-bottom:4px}
.blog-section-head .bs-icon{width:46px;height:46px;border-radius:13px;flex-shrink:0;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);background:var(--alt)}
.blog-section-head .bs-icon svg{width:24px;height:24px;stroke:var(--brand)}
.blog-section-head h2{font-size:1.4rem;font-weight:800}
.blog-section-head .bs-desc{font-size:.92rem;color:var(--muted);margin-top:2px}
.blog-items{display:flex;flex-direction:column;gap:14px;margin-top:20px}
.blog-item{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 28px;transition:box-shadow .18s,transform .18s}
.blog-item:hover{box-shadow:0 12px 30px rgba(15,23,42,.1);transform:translateY(-2px);text-decoration:none}
.blog-item h3{font-size:1.15rem;line-height:1.45;margin-bottom:8px;color:var(--ink)}
.blog-item .b-excerpt{font-size:.93rem;color:var(--muted);margin-bottom:12px}
.blog-item .b-more{font-size:.88rem;font-weight:600;color:var(--brand)}
.blog-empty{border:1.5px dashed var(--line);border-radius:16px;padding:30px;text-align:center;color:var(--muted);font-size:.92rem;margin-top:20px;background:#fff}

/* ---------- 知识库首页（板块入口） ---------- */
.kb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
@media(max-width:900px){.kb-grid{grid-template-columns:1fr}}
.kb-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 26px;transition:box-shadow .18s,transform .18s;position:relative}
.kb-card:hover{box-shadow:0 14px 34px rgba(15,23,42,.1);transform:translateY(-3px);text-decoration:none;border-color:#d4ddf2}
.kb-card .kb-icon{width:50px;height:50px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(79,70,229,.12),rgba(6,182,212,.12));border:1px solid rgba(79,70,229,.18);margin-bottom:18px}
.kb-card .kb-icon svg{width:26px;height:26px;stroke:var(--brand)}
.kb-card h3{font-size:1.25rem;font-weight:800;margin-bottom:8px;color:var(--ink)}
.kb-card p{font-size:.92rem;color:var(--muted);margin-bottom:18px;flex:1}
.kb-card .kb-count{display:inline-block;background:var(--alt);border:1px solid var(--line);color:var(--muted);font-size:.78rem;font-weight:600;border-radius:999px;padding:4px 12px;margin-bottom:16px;align-self:flex-start}
.kb-card .kb-more{font-size:.92rem;font-weight:700;color:var(--brand)}

/* ---------- 知识库首页 · 精选文章 ---------- */
.feat-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:22px}
.feat-head h2{font-size:1.5rem;font-weight:800}
.feat-head .feat-more{font-size:.9rem;font-weight:600;color:var(--brand)}
.feat-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:18px;margin-bottom:20px}
@media(max-width:900px){.feat-grid{grid-template-columns:1fr}}
.feat-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px 30px;transition:box-shadow .18s,transform .18s;position:relative;overflow:hidden}
.feat-card:hover{box-shadow:0 14px 34px rgba(15,23,42,.1);transform:translateY(-3px);text-decoration:none;border-color:#d4ddf2}
.feat-card.main{background:var(--dark);border-color:transparent}
.feat-card.main h3{color:#fff;font-size:1.35rem}
.feat-card.main p{color:#a9b6d8}
.feat-card.main::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;background:radial-gradient(circle,rgba(124,58,237,.35),transparent 65%);pointer-events:none}
.feat-card .f-meta{display:flex;align-items:center;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.feat-card h3{font-size:1.2rem;line-height:1.45;margin-bottom:10px;color:var(--ink)}
.feat-card p{font-size:.92rem;color:var(--muted);margin-bottom:16px;flex:1}
.feat-card .f-more{font-size:.9rem;font-weight:700;color:var(--brand)}
.feat-card.main .f-more{color:var(--cyan)}

/* ---------- 订阅条 ---------- */
.subscribe-bar{background:linear-gradient(120deg,#4f46e5,#06b6d4);border-radius:18px;padding:34px 32px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;margin-top:44px}
.subscribe-bar h3{font-size:1.3rem;margin-bottom:6px}
.subscribe-bar p{font-size:.92rem;color:rgba(255,255,255,.9);max-width:480px}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap}
.subscribe-form input{padding:12px 16px;border:none;border-radius:10px;font-size:.95rem;min-width:240px;font-family:inherit}
.subscribe-form input:focus{outline:none}
.subscribe-form .btn-white{background:#fff;color:var(--brand-dark)}
.subscribe-form .btn-white:hover{transform:translateY(-1px)}
.sub-tip{font-size:.8rem;color:rgba(255,255,255,.85);width:100%;margin-top:10px}

/* ---------- 文章页 · 作者卡 / 相关文章 / 分享 / 转化 ---------- */
.author-card{display:flex;gap:18px;align-items:flex-start;background:var(--alt);border:1px solid var(--line);border-radius:16px;padding:22px 24px;margin:36px 0 8px}
.author-avatar{width:52px;height:52px;border-radius:50%;background:var(--grad);color:#fff;font-size:1.3rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.author-card h4{font-size:1.05rem;margin-bottom:6px}
.author-card p{font-size:.9rem;color:var(--muted)}
.author-card .author-links{margin-top:8px;font-size:.88rem}
.author-card .author-links a{color:var(--brand);font-weight:600}
.share-bar{display:flex;align-items:center;gap:10px;margin:20px 0 8px;flex-wrap:wrap}
.share-bar span{font-size:.88rem;color:var(--muted);font-weight:600}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:.84rem;font-weight:600;color:var(--ink-2);cursor:pointer;transition:all .15s;font-family:inherit}
.share-btn:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}
.share-btn svg{width:15px;height:15px;stroke:currentColor}
.related-block{margin-top:34px}
.related-block h4{font-size:1.1rem;margin-bottom:14px}
.related-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:700px){.related-list{grid-template-columns:1fr}}
.related-item{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;transition:box-shadow .16s,transform .16s}
.related-item:hover{box-shadow:0 8px 22px rgba(15,23,42,.09);transform:translateY(-2px);text-decoration:none}
.related-item .r-tag{display:inline-block;font-size:.72rem;font-weight:700;border-radius:999px;padding:2px 10px;margin-bottom:8px}
.related-item h5{font-size:.95rem;line-height:1.45;color:var(--ink)}
.article-cta{background:var(--dark);border-radius:16px;padding:28px 30px;color:#fff;text-align:center;margin-top:34px}
.article-cta h4{font-size:1.2rem;margin-bottom:8px}
.article-cta p{color:#a9b6d8;font-size:.92rem;max-width:520px;margin:0 auto 20px}
.article-cta .cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- 付款收款码 ---------- */
.pay-codes{display:flex;gap:18px;flex-wrap:wrap;margin-top:16px}
.pay-card{width:168px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;text-align:center;transition:box-shadow .16s,transform .16s}
.pay-card:hover{box-shadow:0 10px 24px rgba(15,23,42,.1);transform:translateY(-2px)}
.pay-card img{width:136px;height:136px;margin:0 auto 8px;border-radius:8px;border:1px solid var(--line);display:block}
.pay-card span{font-size:.85rem;font-weight:600;color:var(--ink-2)}
.pay-card .pay-tip{display:block;font-size:.72rem;color:var(--amber);margin-top:4px;font-weight:600}
.pay-card.todo img{opacity:.5}